ASTROSAT CZTI

Data Quality Report

Orbit 20240806_A09_038T30_9000006372_level2

Creation date: 2024-08-10T09:21:23.226083
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A09_038T30_9000006372cztM0_level2.fits modeM0/AS1A09_038T30_9000006372cztM0_level2_quad_clean.evt
Size (bytes)133,188,480206,642,880
Size127.0 MB 197.1 MB
Events in quadrant A744,6581,285,206
Events in quadrant B761,3761,380,692
Events in quadrant C794,0121,363,950
Events in quadrant D653,9061,150,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03130
B03220
C03250
D03180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0547880
B0336990
C0326580
D0430820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152825803.795315%
B157964953.133705%
C157593512.227299%
D1553712598.103237%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 16805 16106 0 0 0.00% 0.00%
B 16806 16408 0 0 0.00% 0.00%
C 16806 16402 0 0 0.00% 0.00%
D 16806 16229 0 0 0.00% 0.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 7 110 642 8.73 194 181 52.8
A 15 236 605 8.03 194 181 52.8
A 7 30 586 7.67 194 181 52.8
B 2 9 758 13.22 200 190 43.0
B 2 8 614 9.87 200 190 43.0
B 3 17 573 8.91 200 190 43.0
C 3 202 696 8.97 209 195 55.8
C 1 81 645 8.06 209 195 55.8
C 3 203 627 7.74 209 195 55.8
D 4 12 510 6.28 187 168 54.5
D 10 189 503 6.15 187 168 54.5
D 15 47 481 5.74 187 168 54.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter